.tab{
  width:100%;
  height:3.8rem;
  background-color: #fff;
  display: flex;
  justify-content: space-between;
  p{
    width:50%;
    height: 3.8rem;
    text-align: center;
    line-height: 3.8rem;
    font-size: 1.45rem;
  }
}
.dian{
  border-bottom:2px solid #F24349;
}